cloaca
/kləʊˈeɪkə/noun
(pl. cloacae /-kiː/ )
1- Zoology a common cavity at the end of the digestive tract for the release of both excretory and genital products in vertebrates (except most mammals) and certain invertebrates【动】泄殖腔。
1.1
- archaic a sewer〈古〉下水道, 排水道, 阴沟。
派生词
cloacal
adjective词源
late 16th cent. （in the sense 'sewer'）： from Latin, related to cluere 'cleanse'. The current sense dates from the mid 19th cent.